The bad thing about Argentina is that a lot of the professionals are poorly qualified and lazy. Even if you are prepared to pay well, it is often quite difficult to find someone good at their job.
But this is also the good thing: if you are willing to provide good work you will have a lot of opportunities. Whether that pays off in USD is a different question though.
If I were looking for a job here, I would explore two options (obviously that depends on your skills and interests):
1) Calderista (heating systems): there is a complete lack of professionals who are in this line of work (at least thats my personal experience). And it can’t be too difficult to learn this trade. I would try to get hired in this field, learn the trade within one year, and make myself independent.
2) solar systems: also here is a demand for people who can install systems. And with higher electricity prices and more accessible imports, this could be a very interesting business over the next years